CRAP!!!

thats one thing i hate about summers here in louisiana, the humidity stays at 100% for 3 - 4 months strait and its hot as all hell!!!

really takes a toll on the performance of your car.

 

IDK, here its consistently PRETTY DAMN HOT and the humidity is rather high, i noticed my car feels a little better when its cold out.

maybe its just me (placebo effect?)

 

mine feels alot better when its cold out

 

I feel like im driving a grand am when its 90 and humid

 

i know, it sucks.

 

Your car will always run better in the cold because it's breathing in colder air, much like the effect of a CAI.

 

Not only is the air denser when cold = better air charge to the cyl. but when it's humid the water takes up space in the air. I think we react the same way our cars do. It's much easier to breath when it's 70 with no humidity, than when it's 95 and 95% humidity. And yes the cars run worse.

 

More fuel makes more horsepower and to use more fuel you need more oxygen…

Cooler air is denser and thus there are more oxygen molecules per square inch. More oxygen per square inch means you can use more fuel per square inch which results in more horsepower.

The difference in cooler denser more oxygen rich air is more noticeable in motors with superchargers then natural aspirated motors as those found in the Mustangs. I had a 2003 Ford Lightning that came with the supercharger and you could feel a huge difference between warm weather and cool weather.

For those that like or love dyno numbers you will always get your best dyno numbers on cold or cool and dry days then you will when it’s warm and or humid out. You will also get your best ¼ mile times in cooler dryer weather as well…

 

i think the term CAI is misleading, especially on our 05's. the stock airbox pulls in air through the fender, which is cold air; not from the engine compartment. CAI's, while giving increased airflow due to the conical design, actually end up pulling in a lot of hot air, as opposed to a little cold air. should be called HAI instead, or HVAI (high volume air intake); probably more accurate lol.

 

When the car is moving, an aftermarket CAI that is supplied with a properly designed heat shield will pull in cooler air from under the front bumper just like the stock airbox does.
However, when the car is at a standstill both the stock airbox and an aftermarket CAI with a heat shield will now pull in the hot air from within the engine compartment, instead of the cool air from outside the car. This happens because the cooler, heavier outside air requires the car to be moving forward in order to be forced upwards from under the bumper so that it can displace the hotter, lighter underhood air, and be pulled in by the air intake.